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Princess|Lab Grown|IGI

1.70ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG447099080

Shape and cutting style on the report: Princess cut

Certificate IGI LG447099080

Diamond specifications and retailer prices

From $950 USD
As of November 4, 2026
Save $4,432 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,382 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.7ct lab-grown princess diamond

This 1.7ct lab-grown princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099080 or 447099080. Listed at 11 retailers as of November 4, 2026, with prices from $950 to $5,382, a $4,432 spread on the same certified stone. MOH London lists it at $5,382. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099080
Dimensions6.49 × 6.38 × 4.61 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.49 mm6.38 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099080
Side View
Table 70.0%Crown 46.6°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 72.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,382 USD|Low: $950 USD|High: $5,462 USD|Avg: $2,776 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 2$950 USD
Retailer 5$1,629 USD
Retailer 7$1,824 USD
Retailer 10$1,864 USD
Retailer 3$1,950 USD
Retailer 8$2,060 USD
Retailer 9$2,540 USD
Retailer 6$2,971 USD
Retailer 4$3,258 USD
MOH London$5,382 USD
Retailer 11$5,410 USD

12 data points across 11 retailers

11 retailers$950 USD to $5,382 USD

A
Cheapest Retailer
-
$950 USD
B+
Retailer 2
-
$1,629 USD
View
B+
Retailer 3
-
$1,772 USD
View
B+
Retailer 4
-
$1,824 USD
View
Final sale: no returns
Retailer 5
-
$1,890 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,890 USD
View
B+
Retailer 7
-
$2,060 USD
View
B
Retailer 8
-
$2,971 USD
View
B
Retailer 9
-
$3,258 USD
View
B
Retailer 10
-
$3,542 USD
View
Most Expensive
B
MOH London
LG447099080 · Nov 5
$5,382 USD
£4,238 GBP
View
10 more retailers have this diamond
Prices start from $950 USDSave up to $4,432 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.70ct Princess
$950 USD